Westinghouse Air Brake Technologies (WAB), aka Wabtec, is a maker of brakes used in rail cars and for subway busses. Their clients are North American rail roads as well as European, Austrailian, South African, and Indian customers.
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65% of revenue from the 'freight division' which focuses on freight train products
35% of revenue from 'transit division' which focuses on subways and buses.
Certain european train systems may require Wabtec breaks per regulatory requirements